Referrals vs. Cold Calls vs. Ads vs. Bidding Sites: Which Actually Gets Commercial Cleaning Contracts?

"How do you currently get your commercial walkthroughs -- referrals, cold calls, ads, bidding sites? Which gives the best ones, and which wastes the most time?" A real question from a cleaning-business Facebook group, answered with an actual ranking.

The Question Every Commercial Cleaner Eventually Asks

"How do you currently get your commercial walkthroughs? Referrals, cold calls, ads, bidding sites? Which one gives you the best ones, and which one wastes the most of your time?" That's a real question pulled from a cleaning-business Facebook group, and it's one almost every business eventually asks once they've landed a contract or two and want to stop winning work by accident. Here's how those four channels actually stack up against each other -- not in theory, but in the pattern that shows up again and again across real commercial cleaning businesses.

Referrals: The Best Leads, the Least Time Wasted

Referrals win on every axis that matters -- close rate, trust, and time spent per dollar of contract value. A property manager, facility manager, or general contractor recommending you to a peer is a buyer who's already pre-sold before you say a word, which is exactly why referrals consistently outperform cold outreach across the industry. The catch: referrals are a lagging channel. They only start flowing once you've already won and proven yourself on a few accounts, so they can't be your *first* channel -- they're the payoff for doing well on whatever channel got you in the door originally.

Cold Calls and Cold Outreach: Slow, But Not Dead

Cold outreach has the worst reputation of the four, and the reputation is mostly earned -- the hit rate on a cold call to a facility manager who's never heard of you is low, and a single afternoon of calls rarely produces a contract. But "low hit rate" isn't the same as "doesn't work." The businesses that make cold outreach pay off treat it as a volume-and-system game: a defined weekly call quota, a simple CRM or spreadsheet tracking who was contacted and when, and a scheduled follow-up cadence rather than a one-and-done pitch. Done as a one-off, cold calling is the channel most likely to waste your afternoon. Done as a consistent weekly system over months, it's a real, if slow, way to build a pipeline before referrals exist to carry you.

Paid Ads: Narrower Than They Look for Commercial

Paid ads (Google, Facebook/Meta) are built for a different kind of buying decision than most commercial cleaning deals actually are -- a single-session, Yes/No consumer decision, not a multi-stakeholder, multi-week procurement process. That doesn't make ads useless for commercial leads, but it does mean they fit a narrower slice of the funnel (mostly awareness and early-stage contact) than a lot of ad spend assumes. We break down exactly where Google and Facebook ads do and don't fit for commercial cleaning leads in a dedicated guide, including why Google's Local Services Ads -- a common residential lead source -- isn't actually built for commercial or janitorial work at all.

Bidding Sites and RFP Portals: A Different Game Than Thumbtack

"Bidding sites" for commercial work mean something different than the consumer lead platforms (Thumbtack, Angi) residential cleaners use. For government and institutional contracts specifically, it means getting registered on formal vendor/bidder lists -- SAM.gov nationally, plus local municipal and school-district procurement portals -- before you can even see a live solicitation, then responding to a real RFP/RFQ with a written proposal against a defined scope. This channel can land large, stable contracts, but each serious bid response is a real time investment -- hours of proposal writing for a single Yes/No outcome -- so it pays to understand how commercial bids actually get evaluated and be selective about which solicitations are worth a full response versus which ones you have no realistic shot at.

So Which Wastes the Most Time?

Ranked by time invested against what it typically returns, the consistent pattern across the industry looks like this:

1. Referrals -- the least time wasted per dollar won, but you can't manufacture them from nothing; they're earned, not generated.
2. Bidding sites/RFPs -- can be very worth it per contract won (these tend to be the biggest, stickiest accounts), but an unqualified bid response is the single most expensive few hours you can spend on a contract you were never going to win -- vet the opportunity before you write the proposal.
3. Paid ads -- a moderate, ongoing time cost (campaign setup, monitoring, lead follow-up) for a channel that's genuinely better suited to residential and early-stage awareness than it is to closing commercial deals outright.
4. Cold calls/cold outreach -- the most likely to waste your time *unless* it's run as a real system with volume and consistent follow-up, in which case it becomes a legitimate (if slow) way to build the pipeline that eventually turns into referrals.

Bottom Line

There's no single best channel -- there's a sequence. Early on, cold outreach and selective RFP responses are usually what get you your first few commercial accounts, since referrals don't exist yet and ads are a weak fit for a decision this big. Once you've delivered well on those first contracts, referrals take over as your highest-return channel, and the other three become supplements rather than your main source of new work.

Start your free trial →

Get a Free Local Estimate

Our calculator gives ZIP-code specific prices across all 50 states. Free and instant.